Malicious PDF — malware analysis report

Static analysis result for SHA-256 5d81292bb73afa36…

MALICIOUS

PDF

40.9 KB Created: 2020-10-03 18:01:52 +03:00 Authoring application: wkhtmltopdf 0.12.5 (via Qt 4.8.7) First seen: 2026-06-18
MD5: 17e5a0d927cde01ba8bca32979c946e3 SHA-1: d5bbeeb50c5bef862814d3265895fde032fecbac SHA-256: 5d81292bb73afa36bce2339c9e584db58d5bf136185d11d5f53f53580a093ae3
194 Risk Score

Machine Learning

  • Nyx PDF Classifier malicious score 1.0000

Heuristics 5

  • PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
    PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
  • Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
    Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
  • Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
    PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
  • Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
    The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
  • Embedded URL info EMBEDDED_URL
    One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
    URL https://gettraff.ru/strik?keyword=vettaiyadu+vilayadu+full+movie+hd In PDF document text
    • http://www.ascendercorp.com/In PDF document text
    • http://www.ascendercorp.com/typedesigners.htmlIn PDF document text
    • http://www.daltonmaag.com/In PDF document text
    • https://uploads.strikinglycdn.com/files/4faec911-252f-41ae-a3bb-312b4609fcc6/rozedutovevixedife.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/b946e12d-7f17-4225-9838-f42d9d630010/63828059340.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/d2c8b7d1-c763-48fb-a4a2-9054d98c2951/wilibopamawis.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/bf16bf9f-9809-4928-8b7a-807ae23ea671/14123606336.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/56578978-6e8c-4ae4-9939-67be1b781108/97175310230.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/4131e329-ec1f-4be2-8d1f-64e26e8841c6/5308840804.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/eaca61cf-28d7-49fc-b088-7fece368fba4/19897929196.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/6f565a3f-f365-48a5-9047-d0176bacc52f/wajiwiwiw.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/3db95410-051d-46a5-837d-6a5b518e0112/fuvivusigolovaj.pdfIn PDF document text
    • https://uploads.strikinglycdn.com/files/656b5ba9-1733-42fd-87e7-5b5e4b09b19b/sesedemujijol.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0482/9478/9275/files/eva_green_sister.pdfIn PDF document text
    • https://cdn.shopify.com/s/files/1/0439/3415/4907/files/77497889870.pdfIn PDF document text
    • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
    • http://purl.org/dc/elements/1.1/In PDF document text
    • http://ns.adobe.com/pdf/1.3/In PDF document text
    • http://ns.adobe.com/xap/1.0/In PDF document text
    • http://ns.adobe.com/xap/1.0/mm/In PDF document text
    • http://ns.adobe.com/xap/1.0/rights/In PDF document text
    • http://scripts.sil.org/OFLIn PDF document text

Extracted artifacts 3

Files carved from inside the sample during analysis.

FilenameKindSourceSize
font_00_sfnt_off0000560d.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x560D 4776 bytes
SHA-256: 97652458f995ad00d9ece5630acda8e1e251ecc0ab3ebb1ea58cb41bb759caa2
font_01_sfnt_off0000665f.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x665F 9980 bytes
SHA-256: b255981460865f24c1f42c3e8abfb7a4166f98b8e50f841d0b6257afce6d44c0
font_02_sfnt_off0000888c.bin pdf-font-stream PDF embedded font (sfnt) at offset 0x888C 4324 bytes
SHA-256: 05d2457133b820fa77aa358e30e9acfbad3f04c46ced9a37296d9311117db176

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